Sphere lock



FIG. 1 is a perspective view of a sphere lock, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a cross-sectional view of the reference perspective view in FIG. 2. 

The ornamental design for a sphere lock, as shown and described. 